The Internet is a big place, full of e-stores, chat rooms and videos of cats, and as you might imagine, it's incredibly busy on any given day. As more and more business is conducted online, more and more business opportunities are created due to the massive size of the internet. Companies like Amazon, Apple, and even Walmart are giants in e-commerce and their online revenues are continuing to soar. Last year, e-commerce raked in $680 billion worldwide. And on Black Friday alone, Amazon sold 32 items per second. With the help of services like Facebook, Twitter, and email, companies are able to reach practically anybody on the Internet – all 7 billion of them. See for yourself below: